From 51899957a9c4491313749d49333df313f07d5dde Mon Sep 17 00:00:00 2001
From: "Markus F.X.J. Oberhumer" <markus@oberhumer.com>
Date: Mon, 7 Dec 2020 23:05:13 +0100
Subject: [PATCH] Require C++ 14. Finally!

This is the default for gcc >= 6, clang >= 6 and MSVC >= 2019.
---
 src/conf.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/conf.h b/src/conf.h
index 95f946a9..47838774 100644
--- a/src/conf.h
+++ b/src/conf.h
@@ -29,6 +29,15 @@
 #ifndef __UPX_CONF_H
 #define __UPX_CONF_H 1
 
+#if defined(__cplusplus)
+#  if (__cplusplus >= 201402L)
+#  elif defined(__GNUC__) && (__GNUC__+0 == 4) && (__cplusplus >= 201300L)
+#  elif defined(_MSC_VER) && defined(_MSVC_LANG) && (_MSVC_LANG+0 >= 201402L)
+#  else
+#    error "C++ 14 is required"
+#  endif
+#endif
+
 #include "version.h"
 
 #if !defined(_FILE_OFFSET_BITS)